SU549613A1 - Flexible coupling - Google Patents

Description

(54) ELASTIC COUPLING

The areas of the machine The invention relates to construction and may be; for 110 soy; 1 shaft shafts.

Couplings are known, containing a toroidal shell and two coupling halves, each of which consists of a flange and a half-disk connected by a ring, pressing the bead of the shell to the flange with fastening bolts.

However, in lime joints there is no transfer of the half-disks and the ring relative to the axis of the coupling halves, resulting in an unbalanced radial force of inertia, additionally loading the shafts L of the support, irrelevant. However, the position of the ring causes the ring to practically not absorb half discs. These forces, which are significant in magnitude, are perceived in small-sized fastening bolts, which is a consequence of the appearance of bending stresses in bolts, which increase with an increase in the speed of rotation of the coupling.

The difficulty of mounting the known couplings is due to the need to refill the fixing protrusion on the casing into the corresponding grooves on the bottom rollers; Particular difficulties arise when installing large-sized sleeves with rubber-cord shells that have a large radial rigidity.

The presence of a gap between the flange and the half discs leads to the fact that the rubber, when clamping the shell, has the ability to "flow into the free space, the rigidity of the shell's shell at the same time decreases, and to achieve the necessary friction forces a large amount of shell nodzhati is needed: .

In addition, the ability to move half-discs relative to the flanges in the circumferential pan-wrap to the transfer of torque contributes to the appearance of bending stresses in the bolts. This is especially dangerous in the presence of variable torque; its moment.

The purpose of the invention is to provide the possibility of centering the half-discs relative to the flanges and to simplify the coupling mode.

This is achieved by the fact that, in the proposed electric coupling, there is a disc; deformation of the shell for putting this protrusion into the grooves of the half-disks. Kpo.Aie, the plane of the lateral end of the fixing protrusion of the shell is located in the plane of the half-disk connector and co ,, when

In this case, the outer surface of the ring and the inner surface of the bead of the shell are made koinic, and on each flange there is a centric rotating protrusion mating with the outer surface of the ring.

FIG. I shows a flexible coupling, a longitudinal section; in fig. 2 is a section along A-L of FIG. one; in fig. 3 - the variant of fixing of half-disks relative to the shell in fig. 4 - the second option of fixing the half-discs to the shell; in fig. 5 - the third option for fixing a half-disk relative to the shell.

The elastic coupling consists of a continuous rubber or rubber-cord shell 1 and two identical coupling halves. Each half coupling in turn consists of a flange 2 p of two half disks 3, connected by a ring 4 with screws 5. Rings 4 are located between the inner surface of the shell of the casing and the centering protrusion on the half disks. The shell side is pressed by the half disks 3 to the flange 2 by bolts 6 passing through the holes in the ring 4. The centering of the ring 4 relative to the flange is carried out along the outer diameter of the ring. Fixing the half-discs to the shell can be carried out in one of the options shown in FIG. 3-5

When mounted, the half-discs are scooped into the shell and are stacked with a ring. The middle of the locking protrusion on the casing is located in the plane of the half disk and the ring, resulting in a reliable fixation of the half disks in relation to the casing. Then the shell together with the assembled half discs is installed between the flanges 2. For small-sized sleeves, the assembly can be made without extending the connected units due to deformation of the shell in the axial direction. By means of bolts 6, the bead of the shell is clamped between the half-dockup and the flange. Bolts are tightened until the ring 4 stops against the end face of flange 2. This ensures that the shell bead is tightened. The magnitude of the deformation of the shell can be adjusted by changing the thickness of the ring 4.

Caused by the tightening force of friction between flange 2, ring 4 and half disks 5, prevent the movement of flange 2 and half disks 3 in the circumferential direction, thereby relieving bolts 6 from lateral forces. If the moment of friction forces on the end surfaces of the ring 4 and flange 2

if more than half of the torque transmitted by the clutch, bolts 6 will be completely unloaded from the action of ionic forces.

In the proposed design elastic

The couplings twisting momeite from one half coupling to another is transmitted due to friction forces on the surfaces of the contact of the shell with the metal parts of the coupling half.

about rmu la and 3 about b.

Claims (5)

1. Elastic coupling containing half-couplings connected by a toroidal shell, each of which is made in the form of a flange and half-boxes connected by a ring, in order to ensure the centering of half-disks from the flanges and simplify installation Couplings, rings are located between the inner surfaces of the casing and the external and surface of the centering protrusions that are polished on the half-discs. 2. Coupling io p. 1, characterized in that the shell has a locking protrusion, the middle of which is located in the plane of the connector of the half-discs and rings. 3. Muff on pi. 1, 2, about t of l and h and shcha with the fact that the plane of the side end of the fixing protrusion of the shell is located in the plane of the connector of the half-discs and rings. 4. A coupling according to claim 1, characterized in that the spring surface of the ring and the inner surface of the shell bead are made conical. 5. Coupling .. by PP. 1-4, characterized by by the fact that on each flange there is a centering protrusion mating with. outer surface of the ring.